Vince Vaughn as Peter La Fleur

Christine Taylor as Kate Veatch

Ben Stiller as White Goodman

Rip Torn as Patches O'Houlihan

Justin Long as Justin

Stephen Root as Gordon

Joel David Moore as Owen

Chris Williams as Dwight

Alan Tudyk as Steve the Pirate

Missi Pyle as Fran Stalinovskovichdaviddivichski

Jamal Duff as Me'Shell Jones

Gary Cole as Cotton McKnight

Jason Bateman as Pepper Brooks

Hank Azaria as Young Patches O'Houlihan

Al Kaplon as Tournament Referee

Lance Armstrong as Lance Armstrong

Chuck Norris as Chuck Norris

David Hasselhoff as German Coach

William Shatner as Dodgeball Chancellor

Julie Gonzalo as Amber

Trever O'Brien as Derek

Cayden Boyd as Timmy

Rusty Joiner as Blade

Kevin Porter as Lazer

Brandon Molale as Blazer

Suzy Nakamura as Gordon's Wife

Lori Beth Denberg as Martha Johnstone

Julia Ensign as Cheerleader #1

David Boyd as Cheerleader #2

Bowd J. Beal as Cheerleader #3

Curtis Armstrong as Mr. Ralph

Tate Chalk as Waldorf Referee

Jordyn Colemon as Angry Troop #417 Girl

Hayley Rosales as Crying Troop #417 Girl

Bix Barnaba as Homeless Man

Earl Schuman as Elderly S&M Enthusiast

Robert 'Duckie' Carpenter as S&M Man

Tony Daly as Ronnie

Amy Stiller as Keno Waitress

Jim Cody Williams as Weird Guy with Monster Truck

Douglas Grimes as Vegas Roughian

Scarlett Chorvat as Joyce

Matt Levin as Casino Worker #1

Rawson Marshall Thurber as Obnoxious Las Vegas Homophobe

Sik End as Friendly Bondage Master

Stephen B. Turner as Frustrated Cougar #1

Tim Soergel as Frustrated Cougar #2

Andy Chanley as Uber Film / Globo Gym Ad Narrator

Candice Michelle as Cheerleader (uncredited)